Interfacing a GPS module with Arduino unp

Basically I have a project to make.
I have decided to make an automated wheelchair for the elderly in amusement parks, tourist attraction places, etc.
I want it to be guided by a GPS module.
I saw this video on YouTube where the get the coordinates from Google maps and uses it to guide the small car.
I will try to post the link to the video if possible.
Can somebody please help me with the program please.

The link is below.

kwikwik0603:
I want it to be guided by a GPS module.

GPS is not accurate enough for this task. Your wheelchair will probably drive up to a couple of meters next to the road.